The Experts below are selected from a list of 5973 Experts worldwide ranked by ideXlab platform
J P De Arruda - One of the best experts on this subject based on the ideXlab platform.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
IEEE Transactions on Industrial Electronics, 2009Co-Authors: H E P De Souza, F A S Neves, M C Cavalcanti, Fabricio Bradaschia, Gustavo M S Azevedo, J P De ArrudaAbstract:In this paper, a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations; two of them are in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is the input to a synchronous Reference-Frame phase-locked loop for detecting the frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for use in grid-connected converter synchronization algorithms.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
Power Electronics Specialists Conference, 2008Co-Authors: Fabricio Bradaschia, H E P De Souza, F A S Neves, J P De Arruda, Gustavo M S Azevedo, M C CavalcantiAbstract:In this paper a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations, two of them in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is input to a synchronous Reference Frame phase locked loop for detecting frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for using in grid connected converters synchronization algorithms.
H E P De Souza - One of the best experts on this subject based on the ideXlab platform.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
IEEE Transactions on Industrial Electronics, 2009Co-Authors: H E P De Souza, F A S Neves, M C Cavalcanti, Fabricio Bradaschia, Gustavo M S Azevedo, J P De ArrudaAbstract:In this paper, a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations; two of them are in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is the input to a synchronous Reference-Frame phase-locked loop for detecting the frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for use in grid-connected converter synchronization algorithms.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
Power Electronics Specialists Conference, 2008Co-Authors: Fabricio Bradaschia, H E P De Souza, F A S Neves, J P De Arruda, Gustavo M S Azevedo, M C CavalcantiAbstract:In this paper a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations, two of them in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is input to a synchronous Reference Frame phase locked loop for detecting frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for using in grid connected converters synchronization algorithms.
Masayuki Sanada - One of the best experts on this subject based on the ideXlab platform.
-
Mechanical sensorless PMSM drive system based on direct torque control in M-T Frame synchronized with stator flux-linkage vector
2015 IEEE Symposium on Sensorless Control for Electrical Drives (SLED), 2015Co-Authors: Yukinori Inoue, Shigeo Morimoto, Masayuki SanadaAbstract:This paper proposes a mechanical sensorless drive system based on direct torque control for permanent magnet synchronous motor. In the proposed system, the whole control system works in a Rotating Reference Frame that is synchronized with the stator flux linkage vector. The armature voltage in the stationary Reference Frame does not required for the flux estimation. In addition, the proposed system includes maximum torque per ampere (MTPA) and flux-weakening controls for wide-speed-range operation. A novel MTPA model is used for the Reference flux calculation. Both simulation and experimental results show the effectiveness of the proposed system.
-
control method suitable for direct torque control based motor drive system satisfying voltage and current limitations
IEEE Transactions on Industry Applications, 2012Co-Authors: Yukinori Inoue, Shigeo Morimoto, Masayuki SanadaAbstract:This paper proposes a control method suitable for limited armature voltage and current in a permanent-magnet synchronous motor drive system based on direct torque control (DTC). First, this paper proposes torque-limiting and flux-weakening controls that are suitable for a DTC-based motor drive system. The proposed method utilizes a mathematical model in a Rotating Reference Frame synchronized to the stator flux linkage. Second, this paper proposes an antiwindup scheme for the torque controller of the DTC system. Windup of the controller degrades the performances of torque-limiting (current-limiting) control and of torque control. Applying the antiwindup results improves the performance of the proposed torque-limiting method in the transient state. This paper presents a DTC-based drive system combined with a speed controller. The proposed system can achieve stable control, and its effectiveness is confirmed experimentally.
-
a novel control scheme for maximum power operation of synchronous reluctance motors including maximum torque per flux control
IEEE Transactions on Industry Applications, 2011Co-Authors: Yukinori Inoue, Shigeo Morimoto, Masayuki SanadaAbstract:This paper proposes a novel control scheme for maximum power operation of synchronous reluctance motors. The proposed scheme consists of a combination of maximum torque per ampere control, maximum torque per flux control, flux-weakening control, and torque limiting. The first three control methods are based on a mathematical model in a Rotating Reference Frame that is synchronized with the stator flux linkage. The final method utilizes a reactive torque calculated as the inner product of the flux and current vectors. The proposed control scheme is suitable for direct torque control (DTC) or flux-oriented control. In this paper, the scheme is applied to a DTC-based motor-drive system. The validity of the control scheme is verified by simulation and experimental results.
-
a novel control scheme for maximum power operation of synchronous reluctance motors including maximum torque per flux control
International Conference on Electrical Machines and Systems, 2009Co-Authors: Yukinori Inoue, Shigeo Morimoto, Masayuki SanadaAbstract:This paper proposes a novel control scheme for maximum power operation of synchronous reluctance motors. The proposed scheme consists of a combination of maximum torque per ampere control, maximum torque per flux control, flux-weakening control and torque limiting. The first three control methods are based on a mathematical model in a Rotating Reference Frame that is synchronized with the stator flux-linkage. The final method utilizes a reactive torque calculated as the inner product of the flux and current vectors. The proposed control scheme is suitable for direct torque control or flux-oriented control. In this paper, the scheme is applied to a direct-torque-control-based motor drive system. The validity of the control scheme is verified by simulation and experimental results.
-
effectiveness of voltage error compensation and parameter identification for model based sensorless control of ipmsm
IEEE Transactions on Industry Applications, 2009Co-Authors: Yukinori Inoue, Shigeo Morimoto, K Yamada, Masayuki SanadaAbstract:A sensorless-control technique for improving the performance of interior permanent-magnet synchronous-motor control such as the operating speed range and position estimation accuracy is proposed herein. The method presented is based on the estimation of an extended electromotive force in a Rotating Reference Frame. The difference between the Reference voltage and the actual voltage of the inverter is modeled and compensated for in order to improve the accuracy and the stability of the sensorless drive system. Moreover, an online parameter-identification technique is applied in order to improve the accuracy of position estimation. The effects of the proposed scheme are evaluated by the experimental results.
M C Cavalcanti - One of the best experts on this subject based on the ideXlab platform.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
IEEE Transactions on Industrial Electronics, 2009Co-Authors: H E P De Souza, F A S Neves, M C Cavalcanti, Fabricio Bradaschia, Gustavo M S Azevedo, J P De ArrudaAbstract:In this paper, a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations; two of them are in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is the input to a synchronous Reference-Frame phase-locked loop for detecting the frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for use in grid-connected converter synchronization algorithms.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
Power Electronics Specialists Conference, 2008Co-Authors: Fabricio Bradaschia, H E P De Souza, F A S Neves, J P De Arruda, Gustavo M S Azevedo, M C CavalcantiAbstract:In this paper a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations, two of them in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is input to a synchronous Reference Frame phase locked loop for detecting frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for using in grid connected converters synchronization algorithms.
Fabricio Bradaschia - One of the best experts on this subject based on the ideXlab platform.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
IEEE Transactions on Industrial Electronics, 2009Co-Authors: H E P De Souza, F A S Neves, M C Cavalcanti, Fabricio Bradaschia, Gustavo M S Azevedo, J P De ArrudaAbstract:In this paper, a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations; two of them are in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is the input to a synchronous Reference-Frame phase-locked loop for detecting the frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for use in grid-connected converter synchronization algorithms.
-
a method for extracting the fundamental frequency positive sequence voltage vector based on simple mathematical transformations
Power Electronics Specialists Conference, 2008Co-Authors: Fabricio Bradaschia, H E P De Souza, F A S Neves, J P De Arruda, Gustavo M S Azevedo, M C CavalcantiAbstract:In this paper a novel scheme for obtaining the fundamental-frequency positive-sequence grid voltage is proposed. The method is based on four simple mathematical transformations, two of them in the stationary Reference Frame, which are able to eliminate odd harmonics from the original signals. The other two transformations are implemented in a synchronously Rotating Reference Frame in order to eliminate even harmonics. The output of the last transformation block is input to a synchronous Reference Frame phase locked loop for detecting frequency and position of the positive-sequence voltage vector. The proposed algorithm was verified through simulations and experiments by applying distorted and unbalanced signals, containing positive and negative-sequence components. The results are in agreement with those theoretically predicted and indicate that the proposed scheme has a great potential for using in grid connected converters synchronization algorithms.
